Daquan Automation Measurement, control, protection protection device power industry
SUMEC INTERNATIONAL TECHNOLOGY CO.,LTD
The supplier hasn’t listed a price. We can get their current prices and MOQ.
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Daquan Automation Measurement, control, protection protection device power industry
SUMEC INTERNATIONAL TECHNOLOGY CO.,LTDThe supplier hasn’t listed a price. We can get their current prices and MOQ.
Verify from $29 · written report in 3 business days · 100% refund if unreachable
About this product
- Size: ·
- Color: ·
- Certification: Other
- Customized: Other
- IP rating: Other
- Usage: Other
- Exports to: Mainland China, Africa, Middle East, Southeast Asia, South Asia, Central Asia, USA and Canada, Latin America, Russia, EU, Other European Countries, Japan and South Korea, Hong Kong China, Macao China and Taiwan China, Others
About this product
- Size: ·
- Color: ·
- Certification: Other
- Customized: Other
- IP rating: Other
- Usage: Other
- Exports to: Mainland China, Africa, Middle East, Southeast Asia, South Asia, Central Asia, USA and Canada, Latin America, Russia, EU, Other European Countries, Japan and South Korea, Hong Kong China, Macao China and Taiwan China, Others
Product details
| Size | · |
|---|---|
| Color | · |
| Certification | Other |
| Customized | Other |
| IP rating | Other |
| Usage | Other |
| Material | Other |
| Waterproof | WaterproofOther |
| Display method | Other |
Product details
| Size | · |
|---|---|
| Color | · |
| Certification | Other |
| Customized | Other |
| IP rating | Other |
| Usage | Other |
| Material | Other |
| Waterproof | WaterproofOther |
| Display method | Other |
From the supplier
The DQA-790 series protection test device consists of line protection, transformer protection, capacitor protection, resistor protection, backup power self-charging, motor protection, etc., and can be used in 35kV voltage level power grids and power plant auxiliary power systems. By using a central processing unit with a main frequency of 800 MHz, protection, measurement, and communication functions are integrated into one, adapting to substation integrated automatic systems or factory electrical automation system accessories. The device can be installed centrally in groups of screens, or can be installed directly on the switch cabinet for decentralized control.
(1) Measure phase current and zero-sequence current (La, Ib, Ic, Io), phase or line voltage (Uan, Ubn, Unn, Uab, UBC, Uca), power P, non-power Q, power factorcosφ, frequency f, power kWh, reactive power kVarh.
（2）Two 4 - 20mA DC analog outputs (can be customized as current, voltage or power) replace the AC collection transmitter.
(3) The outlet mode of the protective element can be set through the trip logic, making it convenient for users to select the relay to act.
(4) GPS time synchronization can adopt hard-contact divided pulse or second pulse mode, and it also supports IRIG-B time synchronization mode (RS485 interface).
(5) Two 100M Ethernet communication interfaces and two RS485 communication interfaces. Supports IEC60870-5-103, Modbus, IEC61850 and other protocols.
(6) 9 fault recordings, each recording including a 1.9-second sampling point and a maximum recording. Two motors start recording waves (interval of 100mS), 1S before start and 29S after start. Wave recording adopts standard Comtrade format.
(7) Working environment temperature range: -25℃~+55℃.
From the supplier
The DQA-790 series protection test device consists of line protection, transformer protection, capacitor protection, resistor protection, backup power self-charging, motor protection, etc., and can be used in 35kV voltage level power grids and power plant auxiliary power systems. By using a central processing unit with a main frequency of 800 MHz, protection, measurement, and communication functions are integrated into one, adapting to substation integrated automatic systems or factory electrical automation system accessories. The device can be installed centrally in groups of screens, or can be installed directly on the switch cabinet for decentralized control.
(1) Measure phase current and zero-sequence current (La, Ib, Ic, Io), phase or line voltage (Uan, Ubn, Unn, Uab, UBC, Uca), power P, non-power Q, power factorcosφ, frequency f, power kWh, reactive power kVarh.
（2）Two 4 - 20mA DC analog outputs (can be customized as current, voltage or power) replace the AC collection transmitter.
(3) The outlet mode of the protective element can be set through the trip logic, making it convenient for users to select the relay to act.
(4) GPS time synchronization can adopt hard-contact divided pulse or second pulse mode, and it also supports IRIG-B time synchronization mode (RS485 interface).
(5) Two 100M Ethernet communication interfaces and two RS485 communication interfaces. Supports IEC60870-5-103, Modbus, IEC61850 and other protocols.
(6) 9 fault recordings, each recording including a 1.9-second sampling point and a maximum recording. Two motors start recording waves (interval of 100mS), 1S before start and 29S after start. Wave recording adopts standard Comtrade format.
(7) Working environment temperature range: -25℃~+55℃.
About the supplier
- ✓Exhibited at 2 recent Canton Fairs
- ✓Foreign Trade Company
- ✓Founded 1999
- ✓1 certificate on file
- Exhibited at 2 recent Canton Fairs
- Foreign Trade Company
- Founded 1999
- 1 certificate on file
